| env TESTGO_VERSION=go1.21.0 |
| env TESTGO_VERSION_SWITCH=switch |
| |
| # If the main module's go.mod file lists a version lower than the version |
| # required by its dependencies, the commands that fetch and diagnose the module |
| # graph (such as 'go mod graph' and 'go mod verify') should fail explicitly: |
| # they can't interpret the graph themselves, and they aren't allowed to update |
| # the go.mod file to record a specific, stable toolchain version that can. |
| |
| ! go mod verify |
| stderr '^go: rsc.io/future@v1.0.0: module rsc.io/future@v1.0.0 requires go >= 1.999 \(running go 1.21.0\)' |
| |
| ! go mod graph |
| stderr '^go: rsc.io/future@v1.0.0: module rsc.io/future@v1.0.0 requires go >= 1.999 \(running go 1.21.0\)' |
| |
| # TODO(#64008): 'go mod download' without arguments should fail too. |
| |
| |
| # 'go get' should update the main module's go.mod file to a version compatible with the |
| # go version required for rsc.io/future, not fail. |
| go get . |
| stderr '^go: module rsc.io/future@v1.0.0 requires go >= 1.999; switching to go1.999testmod$' |
| stderr '^go: upgraded go 1.21 => 1.999$' |
| stderr '^go: added toolchain go1.999testmod$' |
| |
| |
| # Now, the various 'go mod' subcommands should succeed. |
| |
| go mod download |
| |
| go mod verify |
| |
| go mod graph |
| |
| |
| -- go.mod -- |
| module example |
| |
| go 1.21 |
| |
| require rsc.io/future v1.0.0 |
| -- example.go -- |
| package example |
| |
| import _ "rsc.io/future" |
